Vauxhall Astramax

Manual transmission fluid capacity & service interval

Vauxhall Astramax manual transmission fluid has a capacity range of 1,7 to 3,1 liters. Service intervals occur every 15000 km or 12 months. The data covers 6 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Astramax 1.6i (1991-1993)
  • Use: Normal
  • Capacity 2,1 liter
  • Check 15000 km/ 12 months
  • Code: 4/1
Astramax 1.7 D (1989-1993)
  • Use: Normal
  • Capacity 3,1 liter
  • Check 15000 km/ 12 months
  • Code: 5/1
Astramax 1.3 (1986-1989)
  • Use: Normal
  • Capacity 2,1 liter
  • Check 15000 km/ 12 months
  • Code: 4/1
Astramax 1.4i (1986-1989)
  • Use: Normal
  • Capacity 1,7 liter
  • Check 15000 km/ 12 months
  • Code: 5/1
Astramax 1.6 (1986-1990)
  • Use: Normal
  • Capacity 2,1 liter
  • Check 15000 km/ 12 months
  • Code: 4/1
Astramax 1.6 D (1986-1990)
  • Use: Normal
  • Capacity 2,1 liter
  • Check 15000 km/ 12 months
  • Code: 5/1

Additional Notes

  • The Vauxhall Astramax 1.4i (1986-1989) transaxle holds 1.7 liters of manual transmission fluid, the smallest capacity across all listed engine variants. A lower transaxle fluid volume generally reflects a more compact gearbox unit relative to the engine displacement it serves.
  • The 1.3, 1.6, 1.6 D, and 1.6i variants all share a 2.1-liter transaxle fluid capacity, indicating a common or closely related gearbox assembly across those engine configurations despite spanning different production periods from 1986 through 1993.
  • The Astramax 1.7 D (1989-1993) carries the highest transaxle fluid capacity at 3.1 liters, notably larger than all other listed variants. Diesel-specific gearboxes often have greater fluid volumes to manage the higher torque loads associated with diesel engines.
  • All six listed configurations share an identical check interval of every 15,000 km or 12 months, whichever comes first, under normal use conditions. The dual-trigger format means the interval resets on whichever threshold is reached earlier, accommodating both high-mileage and low-mileage usage patterns.
  • The specifications list check intervals rather than change intervals for all variants. A check interval indicates a fluid level inspection point rather than a scheduled full drain and refill, which is a distinct service action.
  • The 1.6 D (1986-1990) and the petrol 1.6 (1986-1990) share both the same production years and the same 2.1-liter transaxle capacity, suggesting the diesel and petrol versions of the 1.6 used the same manual transaxle unit during that period.
  • The 1.6i (1991-1993) maintains the same 2.1-liter transaxle capacity as the earlier 1.6 carbureted variant, with the fuel injection designation being the primary distinction between the two generations of the 1.6 engine in the Astramax lineup.

Other Systems